Knowledge Base

How To Configure a Cisco With TFTP

1.  Install Solar Winds TFTP server on your computer
    - A TFTP-Root folder should be created on your hard drive
    - Place the configuration file in the tftp root folder
2. Open TFTP server.  Under File > Configure, make sure that the server status is "started."

3. Connect your PC’s ethernet port to one of the four E(0) ports on the back of the router.  Connect
   the PC’s serial port to the "Console" port on the router (blue cable provided).
4. Configure the ip of your computer
    - A new Cisco 831 will have an ip of, and DHCP for all connected devices.
    - If you don’t know the router’s ip or want to change it, see Appendix A.
5. Open a terminal emulator and configure the session with 9600 8N1. 

6. Enter the router’s Global Configuration mode
    Hit Enter to access router
    Router> enable
7. Check to make sure that none of the router interfaces you are using are shut down.

8. Load your config using the following commands

    Router# copy tftp: startup-config
    Address or name of remote host []?
    Source filename []? cocos
    Destination filename []? startup-config
    Accessing tftp://
    Loading cocos from (via Ethernet0): !
    [OK - 2719 bytes]
    2719 bytes copied in 28.288 secs (96 bytes/sec)
    Router# reload
    Proceed with reload? [Confirm]
9. Log back into the router and check that the configuration is correct

    cocos# show run

APPENDIX A - How to check and change the ip of the router

    cocos#show ip int brief

    Interface                  IP-Address      OK? Method Status                Protocol
    FastEthernet1              unassigned      YES unset  administratively down down

    FastEthernet2              unassigned      YES unset  administratively down down

    FastEthernet3              unassigned      YES unset  administratively down down

    FastEthernet4              unassigned      YES unset  administratively down down

    Ethernet0            YES NVRAM  down                  down

    Ethernet1                  unassigned      YES DHCP   up                    down

    Ethernet2                  unassigned      YES NVRAM  administratively down down

    NVI0                       unassigned      YES unset  up                    up

    cocos#conf t
    Enter configuration commands, one per line.  End with CNTL/Z.
    cocos(config)#int Eth0
    cocos(config-if)#ip address

3. All changes to the configuration are saved to Volaitle RAM.  To save changes to NVRAM:

    cocos# copy running-config: startup-config
    Destination filename []? startup-config
    Building configuration...

APPENDIX B - How to configure router interfaces

1. FastEth ports and Eth(0), the router’s interface, will be listed as "down" until a device is plugged in.
   If a port is "administratively down," you will need to change it’s configuration.
    cocos#conf t
    Enter configuration commands, one per line.  End with CNTL/Z.
    cocos(config)#int Fasteth1
    cocos(config-if)#no shut

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Last modified: 2019-12-27  16:36:35  America/Denver